“RETRO EATS ALL DAY DINER GOOD FOOD · GOOD TIMES”是使用 FontVibe AI 创作的长阴影文字效果。扁平45度长阴影文字效果，暖色调复古海报配色——就是复古设计模板常用的那种长阴影质感。

Create a square 1:1 diner-brand identity key art, designed as a 1960s screen-printed roadside diner sign, not a photorealistic scene. Center a large two-line wordmark: "RETRO" on the first line and "EATS" on the second. Use custom ultra-heavy wide geometric sans-serif lettering: near-uniform stroke width, extremely high x-height, dense tight tracking, strict 90-degree flat-cut terminals, blocky mechanical proportions. Letter faces are cream-white stamped ink with narrow, uniform pale-mustard highlight strips along the upper-left-facing terminal planes. MANDATORY LONG SHADOW ON EVERY LETTER: each individual cream letter casts a second solid deep brown-black copy of its exact shape, dragged diagonally toward the lower-right at a precise 45-degree angle, extending 2.75 times the letter height. The long shadows must be huge, crisp-edged, flat, uninterrupted, and occupy most of the sign background. No blur, no gradient, no glow, no bevel, no extrusion, no perspective vanishing point, no 3D side faces. Place the wordmark inside a tall burnt-orange rectangular signboard, filling 76% of canvas width, centered with generous margins. A tiny uppercase line "ALL DAY DINER" sits above the logo in cream-white geometric sans. A small cream-white line "GOOD FOOD · GOOD TIMES" sits below it. Frame the sign with a faded-teal diner façade: a shallow striped awning across the upper edge, simplified olive window blocks at both sides, and a small circular clock graphic near the lower-right edge. Keep all scene objects as confident flat screen-printed shapes, never vector clipart. Background: faded teal flat color field, mustard ground strip along the bottom, restrained olive accents. Apply fine halftone-dot texture to all large ink fields and subtle warm off-white paper grain over the entire composition. One implied upper-left light source only. Clean, legible logo hierarchy, centered frontal composition, no gradients, no photographic textures, no extra text, no misspellings.